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Berdasarkan Gambar 13 terlihat bahwa terdapat sedikit perbedaan (± 1,7m) antara alinyemen

horisontal loop ramp dengan metode SCS dan CCR.

Selanjutnya juga dilakukan perbandingan alinyemen vertikal loop ramp dengan bantuan software

3DHV sebagaimana terlihat pada Gambar 14.

Gambar 14. Perbandingan Alinyemen Vertikal Centerline Loop Ramp Antara Metode Compound Curve Radii

dengan Metode Simple Curve Radius with Spiral Transition Curve

KESIMPULAN

Dari hasil visualisasi secara dua dimensi maupun visualisasi secara tiga dimensi tidak terlihat

perbedaan signifikan antara metode Compound Curve Radii dengan metode Simple Curve Radius

With Spiral Transition Curve, sehingga disimpulkan bahwa metode Compound Curve Radii dapat

dipergunakan sebagai alternatif dalam desain geometri loop ramp sesuai dengan spesifikasi

perencanaan Interchange yang mengacu pada Standard Specifications for Geometric Design of

Urban Roads 1992.

DAFTAR PUSTAKA

• Bonneson J., Zimmerman, K., and Jacobson, M. (2003). “Review And Evaluation Of

Interchange Ramp Design Considerations For Facilities Without Frontage Roads”. Texas

Transportation Institute, The Texas A&M University System, College Station, Texas.

http://tti.tamu.edu/documents/0-4538-1.pdf

• Bonneson J., Zimmerman, K., and Jacobson, M. (2004). “Development Of Ramp Design

Procedures For Facilities Without Frontage Roads”. Texas Transportation Institute, The Texas

A&M University System, College Station, Texas. http://tti.tamu.edu/documents/0-4538-2.pdf

• Department of Transportation Federal Highway Administration (2002). “Traffic Interchages

Design Manual”, Chapter 940, United State.http://tmcpfs.ops.fhwa.dot.gov/cfprojects/

uploaded_files/WSDOT%20Interchanges.pdf

• Directorate General of Highway Ministry of Public Works, (1992). “Standard Specifications

for Geometric Design of Urban Roads”, Jakarta.

• IGrds Concepts Manual. “Appendix M - Ramp Design And Roadway Design Tools”,

http://www.extranet.vdot.state.va.us/locdes/IGrdsManuals/Concept/APP_M.pdf

• Setiawan, R. (2000). “Handout Matakuliah Rekayasa Geometrik Jalan”, Jurusan Teknik

Sipil, Universitas Kristen Petra, Surabaya.

• Setiawan, R. (2005). “Program Visualisasi Alinyemen Jalan Secara Tiga Dimensi

Berdasarkan Perhitungan Alinyemen Horisontal Dan Alinyemen Vertikal”. Prosiding

Simposium Forum Studi Transportasi Antar Perguruan Tinggi (FSTPT) IX, Universitas

Sriwijaya, Palembang.

• Shahani, P.B. (1975). “Road Techniques”, Khanna Publishers, Delhi.

• Sukirman, S. (1999). “Dasar-dasar Perencanaan Geometrik Jalan”, Nova, Bandung.

• Underwood, R.T. (1991). “The Geometric Design of Roads”, Macmilan Company,

Melbourne.

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